Pith Number

pith:DO6NIKQF

pith:2011:DO6NIKQFF35OQ5I6KDB4AHHWMS

not attested not anchored not stored refs pending

3D Model Atmospheres of Red Giant Stars

Hans-Gunter Ludwig, Matthias Steffen

arxiv:1108.4554 v1 · 2011-08-23 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DO6NIKQFF35OQ5I6KDB4AHHWMS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:00:49.345484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bbcd42a052efae8751e50c3c01cf664aea1c5123290a540937a48335e4fb464

Aliases

arxiv: 1108.4554 · arxiv_version: 1108.4554v1 · doi: 10.48550/arxiv.1108.4554 · pith_short_12: DO6NIKQFF35O · pith_short_16: DO6NIKQFF35OQ5I6 · pith_short_8: DO6NIKQF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DO6NIKQFF35OQ5I6KDB4AHHWMS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1bbcd42a052efae8751e50c3c01cf664aea1c5123290a540937a48335e4fb464

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19038de7976132ed8dbb8d71cc33688e0b70b24de78310afffb96d5d07e195db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-08-23T11:20:51Z",
    "title_canon_sha256": "534296799ac85667c4be15d18ee2e0df8f841edfe927f147ba12ecd7f64b666a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4554",
    "kind": "arxiv",
    "version": 1
  }
}